Contamination levels and human health risk assessment of toxic heavy metals in street dust in an industrial city in Northwest China
文献类型：期刊论文
| 作者 | Jiang, Yufeng1; Shi, Leiping1; Guang, A-long1; Mu, Zhongfeng1; Zhan, Huiying2; Wu, Yingqin3 |
| 刊名 | ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
 |
| 出版日期 | 2018-10-01 |
| 卷号 | 40期号:5页码:2007-2020 |
| 关键词 | Street dust Heavy metal Pollution index Potential ecological risk Human exposure assessment |
| ISSN号 | 0269-4042 |
| DOI | 10.1007/s10653-017-0028-1 |
| 英文摘要 | This study investigated the content, distribution, and contamination levels of toxic metals (Cd, Cr, Cu, Pb, and Zn) in street dust in Lanzhou, an industrial city in Northwest China. Meanwhile, the risk these metals posed to the urban ecosystem and human health was also evaluated using the potential ecological risk index and human exposure model. Results showed that concentrations of these metals in the dust are higher than the background value of local soil, with Cu having the highest levels. The districts of Anning and Xigu had the most extreme levels of contamination, while Chengguan and Qilihe districts were lightly contaminated, which can be partly attributed to human activities and traffic densities. In comparison with the concentrations of selected metals in other cities, the concentrations of heavy metals in Lanzhou were generally at moderate or low levels. Heavy metal concentration increased with decreasing dust particle size. The pollution indices of Cr, Cd, Cu, Pb, and Zn were in the range of 0.289-2.09, 0.332-2.15, 1.38-6.21, 0.358-2.59, and 0.560-1.83 with a mean of 1.37, 1.49, 3.18, 1.48, and 0.897, respectively. The geo-accumulation index (I-geo) suggested that Zn in street dust was of geologic origin, while Cd, Cr, Pb, and Cu were significantly impacted by anthropogenic sources. The comprehensive pollution index showed that urban dust poses a high potential ecological risk in Lanzhou. Non-carcinogenic and carcinogenic effects due to exposure to urban street dust were assessed for both children and adults. For non-carcinogenic effects, ingestion appeared to be the main route of exposure to dust particles and thus posed a higher health risk to both children and adults for all metals, followed by dermal contact. Hazard index values for all studied metals were lower than the safe level of 1, and Cr exhibited the highest risk value (0.249) for children, suggesting that the overall risk from exposure to multiple metals in dust is low. The carcinogenic risk for Cd and Cr was all below the acceptable level (< 10(-6)). |
| WOS关键词 | POLYCYCLIC AROMATIC-HYDROCARBONS ; ROAD DUST ; URBAN SOILS ; POLLUTION ; AREAS ; PATTERNS ; ELEMENTS ; LANZHOU ; SAMPLES |
| 资助项目 | National Natural Science Foundation of China[41363008] ; National Natural Science Foundation of China[41272147] ; Foundation of A Hundred Youth Talents Training Program of Lanzhou Jiaotong University |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology ; Public, Environmental & Occupational Health ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000452158700024 |
| 出版者 | SPRINGER |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; Foundation of A Hundred Youth Talents Training Program of Lanzhou Jiaotong University ; Foundation of A Hundred Youth Talents Training Program of Lanzhou Jiaotong University ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Foundation of A Hundred Youth Talents Training Program of Lanzhou Jiaotong University ; Foundation of A Hundred Youth Talents Training Program of Lanzhou Jiaotong University ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Foundation of A Hundred Youth Talents Training Program of Lanzhou Jiaotong University ; Foundation of A Hundred Youth Talents Training Program of Lanzhou Jiaotong University ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Foundation of A Hundred Youth Talents Training Program of Lanzhou Jiaotong University ; Foundation of A Hundred Youth Talents Training Program of Lanzhou Jiaotong University |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/90282]  |
| 专题 | 地质与地球物理研究所_兰州油气中心 |
| 通讯作者 | Jiang, Yufeng |
| 作者单位 | 1.Lanzhou Jiaotong Univ, Sch Environm & Municipal Engn, Lanzhou 730070, Peoples R China 2.Lanzhou Univ Arts & Sci, Chem Engn Coll, Lanzhou 730070, Peoples R China 3.Chinese Acad Sci, Key Lab Petr Resources Res, Inst Geol & Geophys, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, Yufeng,Shi, Leiping,Guang, A-long,et al. Contamination levels and human health risk assessment of toxic heavy metals in street dust in an industrial city in Northwest China[J]. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH,2018,40(5):2007-2020. |
| APA | Jiang, Yufeng,Shi, Leiping,Guang, A-long,Mu, Zhongfeng,Zhan, Huiying,&Wu, Yingqin.(2018).Contamination levels and human health risk assessment of toxic heavy metals in street dust in an industrial city in Northwest China.ENVIRONMENTAL GEOCHEMISTRY AND HEALTH,40(5),2007-2020. |
| MLA | Jiang, Yufeng,et al."Contamination levels and human health risk assessment of toxic heavy metals in street dust in an industrial city in Northwest China".ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 40.5(2018):2007-2020. |
入库方式： OAI收割
来源：地质与地球物理研究所
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